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j2ee online training

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Radiantits offer in depth training on j2ee online training .our coaching is real time job oriented and with placement assistance and live project. – PowerPoint PPT presentation

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Title: j2ee online training


1
(No Transcript)
2
  • Define J2EE?
  • J2EE means that Java two Enterprise Edition.
    The practicality of J2EE is developing multitier
    web-based applications .The J2EE platform is
    consists of a group of services, application
    programming interfaces (APIs), and protocols.

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3
  • 2. What are the four parts of J2EE application?
  • Application clients parts.
  • Servlet and JSP technology are internet parts.
  • Business parts (JavaBeans).
  • Resource adapter parts

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4
  • 3.What are forms of J2EE clients?
  • Applets
  • Application client
  • Java Web Start-enabled clients, by Java web begin
    technology.
  • Wireless clients, supported MIDP technology.

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5
4. what is Hash table? Hash Table is simply
like Hash Map, assortment having
key(Unique),value pairs. Hash table could be a
assortment synchronic object .It doesn't enable
duplicate values however it permits null values.
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6
5.what's Hibernate? Hibernate could be a open
supply object-relational mapping and question
service. In hibernate we are able to write HQL
rather than SQL that save developers to pay
longer on writing the native SQL. Hibernate has
additional powerful association, inheritance,
polymorphism, composition, and collections. Its
an attractive approach for presenting into
database using the java objects
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7
  • 6. What are the advantage of hibernate?
  • Hibernate is portable I mean database
    independent, merchant independence.
  • Normal ORM conjointly supports JPA
  • Mapping of Domain object to relational database.
  • Hibernate is healthier then plain JDBC.
  • JPA supplier in JPA based mostly applications.

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8
  • 7. What is the JSP tag?
  • In JSP tags are often divided into four differing
    types.
  • Directives
  • Declarations
  • Scriplets
  • Expressions

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9
8. Define spring? Spring could be a
lightweight weight open supply framework for the
event of enterprise application that resolves the
quality of enterprise application development
additionally providing a cohesive framework for
J2EE application development. That is based
totally on IOC (inversion of control) or DI
(dependency injection) style pattern.
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10
  • 9. What are features of spring usage?
  • Pojo primarily based programming allows reprocess
    part.
  • Improve productivity and later cut back
    development value.
  • Dependency Injection are often accustomed improve
    testability.
  • Spring needed enterprise services while not a
    requirement of high-priced application server.
  • It reduces coupling in code and improves
    maintainability.

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11
10. Define servlet? Servlets could be a
server aspect elements that offer a robust
mechanism for developing server aspect programs.
Servlets could be a server still as
platform-independent and Servlets are designed
for a numerous protocols. Most ordinarily used
Http protocols
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12
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